Machine for waxing paper



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G. H. RICH. Machine for Waxing Paper. No. 233,282. Patented Oct. 12,I880.

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2 Sheets-Sheet 2. G. H. RICH. Machine for Waxing Paper.

No. 233,282. Patented Oct. 12,1880.

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NITED STATES PATENT OFFICE.

GEORGE H. RICH, OF LYNN, MASSACHUSETTS.

MACHINE FOR WAXING PAPER.

SPECIFICATION forming part of Letters Patent No. 233,282, dated October12, 1880.

- Application filed November 26, 1879.

To all whomt't may concern Be it known that I, GEO. H. RICH, of Lynn,Essex county, Massachusetts, have invented a certain new and usefulImprovement in Machines for Waxing Paper, of which the following is afull and exact description, sufficient to enable any one skilled in theart to which my invention belongs to make, construct, and use the same.

My invention relates to certain improvements in machines for waxingpaper; and it consists in certain combination of parts, as will behereinafter more fully described.

In the following description reference is made to the drawingsaccompanying the same, in which- Figure 1 is a plan view of the machineembodying my invention. Fig. 2 is a vertical longitudinal section ofFig. 1, taken near the middle of the figure. Figs. 3 and 4 are detailviews. Fig. 5 is a plan view of a modified form of the mechanism shownin Figs. 1 and 2. Fig. 6 is a vertical longitudinal section of Fig. 5.Figs. 7 and 8 are detail views of parts shown in Figs. 5 and 6.

A is the frame of the machine, to which the operative parts areattached. B is a roll, journaled in one end of the frame, upon which thepaper to be treated is wound in a long continuous strip or broad ribbon.The paper, after leaving this roll, is led over several smooth rods orspindles, a. a a, by which a certain degree of frictioniis imparted andthe surface is freed from wrinkles. From the last spindle, a, the sheetpasses into the trough (1, containing the wax, which is kept in a meltedcondition by means. of the heat imparted from a steam-jacket, D,beneath. In this trough are placed two posts, E E, at each end of saidtrough. In these posts are journaled two rolls-one a lower roll, F, andthe other an upper roll, F wh ich may, if desired, be of somewhat lessdiameter than the roll F. A third roll, F, is journaled in rockingbearings connected with the machine by a stud, e, which enters adepression in the bottom of the trough, the upper side of the bearingsbeing connected with the posts E E by means of a bolt, f, having itsextremity threaded and provided with a spiral spring, g, coiled upon thebolt and confined by a washer, h, resting against the head of thebearing d, and by the enlarged head of the bolt. By turning the bolt itis screwed into the post E, and the spring g is compressed, pushing theroll F against the roll F with a force proportioned to the power ofthe-spring. The roll F is placed in the same horizontal plane as theroll F, so that both revolve partly in and partly out of the liquid waxcontained in the trough. The upper roll, F, is journaled in movableboxes G, which rise and fall in the slotted portion of the posts E E,the journal-boxes G being supported by a vertical screw-threaded rod, a,having a thumb-nut, G, through which the rod passes freely, and anadjusting-nut, G. The nut G is threaded into the top of the post, and isbored sufficiently to allow a spiral spring, 9, to be placed on the roda. It is evident that by turning the nut G the rod a will be raised, thespring g compressed, and the roll F will be raised from the lower roll,F. When the tension of the spring is suitably adjusted the roll may beagain lowered until it is in contact with the lower roll, F, by simplyturning down the thumb-nuts G.

The paper sheet B is carried from the spindle a beneath the roll F then,passing between it and .the roll F, it is carried over the latter andbetween it and the upper roll, F. From this point it is led directly toa receiving-roll, placed at any suitable distance--as, for instance, aroll, at the farther end of the machine.

By means of the bolts f and springs g the pressure of the roll F uponthe roll F is adjusted, while the degree of pressure exerted by the rollF upon the roll F is determined by means of the nuts G and G and thespring g.

Motion is communicated to the operative parts by a pulley, I, on theshaft of the roll F. The two remaining rolls, F and F, are revolved bytheir frictional contact with the roll F.

A cord-pulley, K, is mounted upon the end of the roll-shaft, and bymeans of an elastic belt or cord, L, this pulley is geared with the reelB. By this means motion is given to the reel to enable it to take up thepaper strip as it is delivered by the waxing-rolls, while at the sametime the increased speed of the periphery of the take-up roll B (saidincrease being due to the increase in size as the paper accumulatesthereon) will not exert a sufiicient tension to tear the paper strip,the elastic band L permitting the driving-pulley to travel faster thanthe driven pulley.

Steam is admitted to the jacket D through an induction-pipe, m, anddischarged through a waste-pipe, m.

The rolls F F F" are metal, brass or some similar composition beingpreferable.

As the rolls are heated by contact until they are the same temperatureas the melted wax, no trouble is experienced from the wax adhering tothem.

The operation of the machine is as follows: The paper strip being ledthrough the trough and between the rolls in the manner alreadydescribed, the roll F" is brought into contact with the roll F, andsufficient pressure is caused by turning up the bolts f, to insure aclose and equal pinch upon each and every part of the paper sheetthroughout the whole line of contact. The upper roll, F, is then screweddown closely upon the roll F, and motion is imparted to the shaft of theroll. By the revolution of the rolls the paper is fed through thetrough, and as it passes between the two rolls F and F the wax is spreadequally upon both surfaces, while the roll F, to the action of which itis immediately subjected, forces the wax into the fiber, and at the sametime removes all superfluous wax from the paper. As fast as the paperarrives at the point where the reel is placed it is wound upon it, thedistance to that point being sufficient, considering the rate of speedat which the strip travels, to enable the wax to become so dry that itwill not stick when the paper is wound upon the reel.

In waxing long strips of paper, as the piece is led directly from thewaxing-rolls to the reel, there is no difficulty experienced from thepaper adhering to the rolls. It is, however, frequently necessary to waxshort pieces, no one of which is of sutiicient length to reach the reelbefore the other end leaves the rolls. It is also impossible to feedthese short pieces under the roll F, which has to be removed when thestrip is inserted, and as the ends of the short pieces are very apt tostick to the rolls and wind around them, I have found it necessary, inorder to wax them upon my machine, to make certain modifications in theconstruction described above. These modifications are illustrated inFigs. 5 to 8 of the drawings, inclusive, and I will now proceed todescribe the same.

In the first place I remove the metal roll F (shown in Figs. 1 and 4) bytaking out the screw-bolts n n and lifting off the upper part of thepost E. In its place, and journaled in the same bearings, I substitute aroll composed, with the exception of its central shaft, wholly of felt,as seen at F Fig. 8. Around the upper roll I carry a series of endlessbands or cords, H, at regular intervals, extending to and passing arounda smooth-surfaced spindie, M, which is mounted upon slotted supports at.These cords are retained at equal intervals apart by a series of veryshallow channels or grooves formed on the surface of the spindle m. Thecords run in these grooves, and as the upper roll revolves they travelslowly in the direction of the arrow in Fig. 6. A similar series ofendless cords or hands is arranged so as to extend from a revolvingshaft, N, just in front of the felt roll F", over a series of rolls. N NN, a gravity-roll, N, being placed in about the center of the lower partof said cords. This roll is guided by slotted bearings 0, formed in theframe of the machine, whereby the roll is steadied and retained inplace, while at the same time its whole weight rests upon the cords andimparts the proper degree of tension to them. The machine is now readyfor use in waxing short pieces. However, should it be desired, the sidepieces, A, (shown in Fig. 2,) which carry the two rolls a a, may bewholly removed, and the chute A may be substituted. By this means thesmall sheets of paper may be fed with more ease and certainty.

The operation of the machine is as follows: Motion, being imparted tothe shafts of the roll F, (this being the felt roll substituted for themetal roli F,) is communicated through the gear K and pinion K to thepinion K on the end of the spindle or roll M, thus setting in motion theseries of endless cords H. A sheet of paper being now pushed forward inthe chute A, it is seized by the rolls F and F and passed between them,receiving a com plete coating of wax as it goes. The series of cords Hprevent the paper sticking to the upper roll, and the lower roll beingmade of felt, there is, owing to the nature of the material, no tendencyon the part of the paper to adhere to it. As the paper issues frombetween the rolls it falls upon the traveling cords or bands 11*, whichare caused to travel with a speed equal to the movement of the paperwhile passing between the rolls. By these cords the sheet is supporteduntil it is clear of the rolls, after which it is carried forward uponthe cords and delivered at the end of the machine, as at P, Fig. 6. Theinterval of time occupied in moving over the space between thewaxing-rolls and the point P is sufficient to dry the wax and precludethe possibility of the pieces sticking together.

It will be seen that by my invention substantially the same mechanism isused in both the machine shown in Figs. 1 to 4, inclusive, and themodified form illustrated in Figs. 5 to 8, inclusive, the principaldifference being in the addition of the devices described, whereby thepaper is prevented from sticking to the rolls and the travelers, wherebyit is supported after leaving the waxing-rolls.

The main feature of my invention is found in the peculiar method which Ihave discovered, whereby I am able to apply the wax to both surfacesequally and to remove the surplus wax and save it without using scrapersor any analogous devices. This consists in passing the paper through thewax and then submitting it, while the wax is still liquid, to severepressure, either between rolls or equiva lent mechanism, in the manneralready described.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent of the United States, is-

1. The machine for waxing paper herein described, consisting of asteam-heated trough, two rolls revolving therein in contact with eachother, a third roll placed above the second of the trough-rolls, anddevices for adjusting the pressure of said rolls, all as set forth.

2. The combination, in a machine for waxing paper, of a trough for thewax having a steam-chest beneath two rolls revolving in said trough,athird pressure-roller placed above one of said rolls, devices forregulating the pressure of said rolls, and reels for discharging andreceiving the continuous paper strip, as set forth.

3. The combination, in a machine for waxing paper, of a steam-heatedtrough, a felt roll revolving in said trough and partly submerged in theliquid wax, an upper metallic pressure-roll resting on said felt roll, aseries of endless bands passing around said metallic roll and around aspindle placed at a suitable distance therefrom, and a series oftraveling bands extending from a point immediately in front of thewaxing-roll to the delivery end of the machine, as set forth.

4. The combination, with the trough (J, having a steam-chest, D, of theroll F, mounted in rocking bearings d, pressure-adjusting devices f 9,lower stationary roll, F, upper pressure-roll, F, slotted posts E, boxesand rods a, nuts G G, and spiral springs g, all as set forth.

5. The combination of the felt roll F pressure-roll F, endless bands H,spindle M, slotted supports m and travelers H all as set forth.

6. The combination of the felt roll F, the pressure-roll F, the endlessbands H, and the steam-heated trough, all as set forth.

7. The combination of the two pressurerolls F F, the cord-pulley K, thereel B, and the elastic belt L, as set forth.

8. The combination, with the roll F", of the journal-blocks 01, havingstud e, the trough 0, having a depression to receive said studs, thethreaded bolt f, spiral spring g, and post E, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEO. H. RICH. Witnesses:

CHAS. B. TILDEN, OSCAR Low.

